Method of manufacturing twocolored articles



Dec. 1, 1936. s. HANSEN METHOD OF MANUFACTURING 'IWU-COLORED ARTICLES Filed March 8, 1933' I N V EN TOR. Svend Hansen.

A TTORNEYS.

Patented Dec. 1, 1936 UNITED STATES:

IVIE 'IHOII I OF MANUFACTURING TWO- COLORED ARTICLES Svend Hansen, Long Island City, N. Y., assignor to Marblette Corporation, Long Island City, N. Y., a corporation of New York Application March 8, 1933, Serial No. 660,005

1 Claim.

The main object of this invention is the provision of a novel article of manufacture by a novel process, the process being applicable in the manufacture of handles for knives, forks, and the like, as well as smokers articles such as pipe stems, cigarette holders, and the like, as well as ringlets for use as ornamental bracelets, and for other purposes.

Another object of the invention is the production of articles of manufacture formed of cast or moulded phenol resin in colors, for instance, in twoor multi-toned finish.

' Still another object of the invention is the provision of such multi-toned articles in colors, each of the colors permeating the mass or material of that color, so that in the process of use and wear of the article the colors remain intact and permanent.

The above and other objects will become apparent in the description below, in which characters of reference refer to like-named parts in the drawing.

In the accompanying drawing, in which a knife handle has been selected to illustrate the invention and its applicability, Figure 1 is a longitudinal cross-sectional view through one of the mould units showing the latter partly filled with a mass of soft phenol resin of one color.

Figure 2 is a perspective view of the same mass in solidified form, removed from the mould and having a tenon-like recess drilled therein.

Figure 3 is a View of a mould similar to that of Figure 1, showing the solidified mass of Figure 2 set therein, and a secondsoft mass, of different color, filling the mould above the first mass.

Figure 4 is a side View of the finished knife handle of Figures 1, 2, and 3.

Figure 5 is a side view of a completed knife handle of a different design.

Figure 6 is a perspective view of the lower portion (similar to that of Figure 2 but of different shape) of the handle shown in Figure 5.

Figure '7 is a view illustrating the handle of Figure 4 applied to a knife.

Referring in detail to the drawing, the numeral l0 indicates a mould depending from a frame or tray l l, the latter being provided with a plurality of such moulds in spaced-apart relation with each other. These moulds are usually made of lead to make them readily pliable as willpresently become apparent.

The mould I0 is partly filled, as shown in Figure 1, with a mass of hot semi-liquid phenol resin to the depth indicated by the numeral l2, the

consistency of the hot mass approximating that of molasses. The mass has been previously provided with a red color by means of an aniline dye, such dyes being used for all of the various colors desired. After the soft mass 12 has cooled and hardened, it is removed from the mould ID, or, as is the usual practice, the lead of the mould is torn away from the solidified red handle portion I3. By means of a drill, or in any other suitable way, the cylindrical bore l 4 is then cut out of the upper end of the portion l3 in such manner that it intersects the upper surface of said portion and thus provides a mouth I5, into the bore.

The handle portion, I3 is then placed into another mould l5, which is exactly similar to the mould l0, and pushed to the bottom thereof.

If necessary, the mould l5 may be provided with a plurality of air vents, not shown, to permit the escape of air. That portion of the mould 15 between the top of the handle portion l3 and the mould, is then filled with a hot semi-liquid mass [6 of the same material but different in color; in the illustration at hand, the mass I6 is blue. This soft mass enters the bore I! through the mouth I5 and fills the former. Upon cooling, the mould l 5 is torn away from the hardened contents, and the completed two-tone handle l8 shown in Figure 4 is: obtained. The two colored portions of the handle naturally cling to each other at their adjacent surfaces, so that the finished handle possesses the same quality of unity and rigidity as that of a single mass.

Obviously the upper end of the lower portion of the handle may be shaped in many different ways, and in Figures 5 and 6 a different form of handle 2| is illustrated. The peaked tongue 20 is formed on the lower portion l9 after the latter has hardened, by cutting away by any suitable means, of the material around the tongue 20. v

The knife 22 shown in Figure 7 is secured to the handle it by first providing an axial bore (not shown) in the handle, then running therein the usual knife staff (not shown), with the sleeve 23 of the knife surrounding the boss 24 at the lower end of the handle.

It is obvious that pipe stems, cigarette holders; and the like may likewise be manufactured with the two-tone effect, by merely modifying the moulds to suit the shape desired, and after the completed hardened mass has been attained, the same is bored out as desired. I

In the case of such ornamental articles as braceletrings, the variously-colored masses substance of one color, permitting said substance to harden and removing the hardened substance from the mould, shaping the upper periphery of said hardened substance by means of a tool into any desired form, replacing said shaped hardened substance at the bottom of another mould identical to the first mould with the upper portion at the top, then filling said second mould above said hardened substance with a similar molten substance of a different color and permitting the latter to harden, the peripheral borderline between said hardened substances forming an outline following the said form, the two-colored handle being then removed from the second'mould.

SVEND HANSEN 

